1. XRI OFH
2. ANI FOH
3. XRI FOH
4. ANI OFH
ANI FOH
1. ROM is a read/Write memory
2. PC points to the last instruction that was executed
3. Stack works on the principle of LIFO
4. All instructions affect the flags
Stack works on the principle of LIFO
1. A line printer used to print the output of a number of jobs
2. A terminal used to enter input data to a running program
3. A secondary storage device in a virtual memory system
4. A graphic display device
A line printer used to print the output of a number of jobs
1. 256 x 16
2. 16K x 8
3. 4K x 16
4. 64K x 16
64K x 16
1. 1
2. 2
3. 3
4. 5
3
1. data transfer
2. arithmetic
3. logical
4. program control
arithmetic
1. only if an interrupt service routine is not being executed
2. only if a bit in the interrupt mask is made 0
3. only if interrupts have been enabled by an Et instruction
4. none of these
only if interrupts have been enabled by an Et instruction
1. cache memory and I/O devices
2. main memory and I/O devices
3. two I/O devices
4. cache and main memories
main memory and I/O devices
1. 0020 H
2. 0024 H
3. 0028 H
4. 002 CH
0028 H
1. eight bidirectional lines that are used to transfer 8 bits between the microprocessor and its I/O and memory
2. eight lines used to transfer data among the registers
3. eight unidirectional lines that are used for I/O devices
4. sixteen bidirectional lines that are used for data transfer between the microprocessor and memory
sixteen bidirectional lines that are used for data transfer between the microprocessor and memory